move http.request.original_method to trace attributes and make it con…

…ditionally required

semantic_conventions/http-common.yaml

@@ -50,12 +50,6 @@ groups:
           populate the exact method passed by client on `http.request.original_method` attribute.
 
           HTTP method names are case-sensitive and `http.request.method` attribute value MUST match a standard (or documented elsewhere) HTTP method name exactly.
-      - id: request.original_method
-        type: string
-        requirement_level:
-          recommended: If and only if it's different than `http.request.method`.
-        brief: Original HTTP method sent by the client in the request line.
-        examples: ["GeT", "ACL", "foo"]
       - id: response.status_code
         type: int
         requirement_level:

semantic_conventions/trace/http.yaml

@@ -8,6 +8,12 @@ groups:
         These conventions can be used for http and https schemes
         and various HTTP versions like 1.1, 2 and SPDY.
     attributes:
+      - id: request.original_method
+        type: string
+        requirement_level:
+          conditionally_required: If and only if it's different than `http.request.method`.
+        brief: Original HTTP method sent by the client in the request line.
+        examples: ["GeT", "ACL", "foo"]
       - id: request.body.size
         type: int
         brief: >

specification/trace/semantic_conventions/http.md

@@ -89,8 +89,8 @@ sections below.
 <!-- semconv trace.http.common(full) -->
 | Attribute  | Type | Description  | Examples  | Requirement Level |
 |---|---|---|---|---|
-| `http.request.original_method` | string | Original HTTP method sent by the client in the request line. | `GeT`; `ACL`; `foo` | Recommended: [1] |
 | `http.response.status_code` | int | [HTTP response status code](https://tools.ietf.org/html/rfc7231#section-6). | `200` | Conditionally Required: If and only if one was received/sent. |
+| `http.request.original_method` | string | Original HTTP method sent by the client in the request line. | `GeT`; `ACL`; `foo` | Conditionally Required: [1] |
 | `http.request.body.size` | int | The size of the request payload body in bytes. This is the number of bytes transferred excluding headers and is often, but not always, present as the [Content-Length](https://www.rfc-editor.org/rfc/rfc9110.html#field.content-length) header. For requests using transport encoding, this should be the compressed size. | `3495` | Recommended |
 | `http.response.body.size` | int | The size of the response payload body in bytes. This is the number of bytes transferred excluding headers and is often, but not always, present as the [Content-Length](https://www.rfc-editor.org/rfc/rfc9110.html#field.content-length) header. For requests using transport encoding, this should be the compressed size. | `3495` | Recommended |
 | `http.request.method` | string | HTTP request method. [2] | `GET`; `POST`; `HEAD` | Required |